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Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
06:59

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Intrastent sonotherapy in pulmonary vein restenosis: a new treatment for a recalcitrant problem

C J McMahon1, C E Mullins, H G El Said

  • 1Lillie Frank Abercrombie Division of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston 77030, USA. cmcmahon@bcm.tmc.edu

Heart (British Cardiac Society)
|January 16, 2003
PubMed

Insights

Recurrent pulmonary vein stenosis in a child was treated with balloon dilation and intrastent sonotherapy. This novel approach significantly improved the patient's condition and reduced pulmonary hypertension.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Interventional Cardiology

Background:

  • Pulmonary vein stenosis (PVS) is a serious complication after surgical repair of infradiaphragmatic pulmonary venous connection.
  • Recurrent PVS necessitates multiple interventions, posing significant challenges in pediatric patients.

Observation:

  • A 2-year-old boy with recurrent PVS experienced severe neointimal proliferation in previously implanted pulmonary vein stents.
  • The patient presented with suprasystemic right ventricular pressure, indicating significant pulmonary hypertension.

Findings:

  • Simultaneous balloon dilation and intrastent sonotherapy were performed to address the severe neointimal proliferation.
  • Three months post-intervention, the patient showed significant clinical improvement, with decreased right ventricular pressure and Doppler velocity across the stents.

Implications:

  • Intrastent sonotherapy combined with balloon angioplasty presents a promising therapeutic option for managing recurrent pulmonary vein stenosis.
  • This approach may offer a less invasive alternative to repeat surgeries, improving outcomes for pediatric patients with complex congenital heart disease.

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